Power Amplifier First Watt F7 Silver

3 800,00 € for pcs with VAT 20%

Description

The First Watt F7 is an innovative Class A stereo power amplifier created by legendary audio designer Nelson Pass. Designed around an ultra-simple, two-stage push-pull topology with an exceptionally low component count, it utilizes matched JFETs at the input and a single pair of power MOSFETs per channel at the output. A key technical feature of the F7 is its unique balancing of subtle negative voltage feedback with positive current feedback, which lowers internal output impedance and boosts damping factor to deliver exceptional grip, transient response, and control over reactive speaker loads. Delivering 25 W per channel into 8 ohms, the F7 provides a clean, fluid, and highly detailed sound profile with low distortion and an expansive soundstage.

Specification

Product code: p1_FRW_AMP_POW
Frequency response DC až -3 dB @ 100 kHz
Input impedance 10 kΩ
Power consumption 170 Watts
Fuse Typ 3AG pomalá (2,5 A pre 120 V AC / 1,25 A pre 240 V AC)
Gain 14,5 dB
Noise 100 µV nevážený, 20 Hz – 20 kHz
Distortion @ 1 Watt 0,05 %
Damping Factor > 100
Output Power @ 8 Ω 30 Watts @ 3 % THD, 1 kHz

First Watt

The First Watt brand represents a unique, visionary project by the legendary audio engineer Nelson Pass, founded in 1998 with the aim of exploring the boundaries of purist amplification without the compromises of the commercial market. The brand builds on Dick Olscher’s famous idea that it is precisely the first watt of power that is most important for overall musicality. If an amplifier does not sound natural and detailed at the very first watt, enormous power output in the hundreds of watts loses its meaning. First Watt specialises exclusively in low-power amplifiers operating in pure Class A with an output of up to 25 watts, which utilise exceptionally simple circuit designs with minimal or zero negative feedback.

Thanks to their simple circuitry and an emphasis on the top-quality of individual transistors, First Watt amplifiers deliver exceptional micro-dynamicsdynamics, captivating detail and a silky naturalness that is often compared to the finest valve designs, yet with the absolute reliability of solid-state technology. Each model from Nelson Pass’s workshop represents a unique concept, whether it involves the use of special JFET and SIT transistors or a current-source circuit without negative feedback. First Watt amplifiers are designed for discerning audiophiles with highly sensitive loudspeakers who seek subjective perfection, absolute fidelity and uncompromising musicality.

Manufacturer information (GPSR)

Manufacturer

Pass Laboratories

13395 New Airport Road, Ste G Auburn, CA 95602 (530) 878 5350 USA

[email protected]